383129428 has 24 divisors (see below), whose sum is σ = 734509440. Its totient is φ = 173416320.

The previous prime is 383129407. The next prime is 383129473. The reversal of 383129428 is 824921383.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7701 + ... + 28732.

It is an arithmetic number, because the mean of its divisors is an integer number (30604560).

Almost surely, 2^383129428 is an apocalyptic number.

It is an amenable number.

383129428 is a deficient number, since it is larger than the sum of its proper divisors (351380012).

383129428 is a wasteful number, since it uses less digits than its factorization.

383129428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36687 (or 36685 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 383129428 is about 19573.6922423951. The cubic root of 383129428 is about 726.2985387675.

The spelling of 383129428 in words is "three hundred eighty-three million, one hundred twenty-nine thousand, four hundred twenty-eight".